Circuit controlling device



- March 21, 1933. c. B. WILL] 1,902,744

C IRCUIT CONTROLLING DEVICE Filed Feb. 11., 1932 N W A gwuenkw E (119. I I illz' Patented Mar. 21, 1933 UNITED STATES PATENT OFFICE CHRISTOPHER B. WILLI, OF HEBER, CALIFORNIA, ASSIGNOR OF ONE-FOURTH TO GEORGE D. THOMPSON, F HEBER, CALIFORNIA CIRCUIT CONTROLLING DEVICE Application. filed February 11, 1932. Serial No. 592,416.

This invention relates to a circuit controlling device designed primarily for use in connection with motor vehicles, but it is to be understood that a device, in accordance with this invention may be employedin any connection for which it may be found applicable, and the invention has for its object to provide, in a manner as hereinafter set forth, a device of the class referred to for cutting out the ignition system for the motor of the vehicle in case the lubricating oil in the lubricating system recedes a dangerous amount below normal, when there is no lubricating oil in circulation, when there is not sufficient lubricating oil to properly lubricate, when there is no oil in the crank case of the motor and in case of a broken suction line or pump, thereby protecting the work ing parts of the motor or engine which are to be constantly lubricated.

Further objects of the invention are to provide, in a manner as hereinafter set forth, a device of the class referred to which is comparatively simple in its construction and arrangement, strong, durable, compact, readily interposed in the lubricating and ignition systems of the motor, thoroughly eflicicnt in its use, automatic in its action to cut out the ignition system, quickly assembled and disassembled when occasion requires, and comparatively inexpensive to manufacture.

To the above ends essentially and others which may hereinafter appear, the invention consists of such parts and such combination of parts which fall within the scope of the invention as claimed.

In the drawing:

Figure 1 is a vertical sectional view of a circuit controlling device in accordance with this invention.

Figure 2 is a section on line 22 Figure 1.

Figure 3 is a top plan view of a holder for the circuit controlling element.

Figure 4 is a top plan view of an insulator for the holder.

The device includes an open top sectional housing 1 formed of any suitable material.

The sections of the housing are indicated at 3, 4, the former being superposed with respect to the latter. The section 3 is tubular and is formed at its bottom with an outwardly directed annular, apertured flange 5. The section 3 adjacent its upper end has a pair of diametrically disposed annular bosses 5 6 extended from the outer periphery thereof and which provides a pair of sockets. The section 4 in cross section is of cup-shape, formed centrally of its bottom with an in-. take opening and a depending annular-boss 6 8 which registers with opening 7. The inner diameter of section 4 is less than the inner diameter of section 3. One side of section 4 is enlarged, as at 9 and such side is provided with a lateral outlet opening 10 and a ver- 66 tical socket 11 having a threaded wall. The top of section 6t has an outwardly directed right angularly disposed apertured flange 12 which extends from one side to the other side of enlargement 9 and is flush with the upper 7 face of the latter. The section 4 provides a lubricant receiving chamber 13 and is interposed between the line sections 14, 15 of the suction line of the lubricant system. The line section 14 is connected to boss 7 and 76 wall of opening 7. The line section 15 is connected to the wall of opening 10. The inner face of section 3 in proximity to its lower end is formed with a horizontally disposed angle-shaped flange 16 which consti- 0 tutes a support and which is of a contour corresponding to the insulator element 17 shown in Figure 4. The element 17 is seated upon and has its edges flush with the edges of flange 16.

The flange 5 is arranged over the flange 12 and enlargement 9. Positioned against the lower face of flange 5 is a washer 18. Mounted upon the flange 12 and enlargement 9 is a washer 19. Interposed between 9 the washers l8 and 19 is a flexible diaphragm 20 which acts as a closure for the top of chamber 13. The washer 19 spaces diaphragm 20 from section 1. The enlargement 9 and flange 12 are of greater cross sectional length than flange 5. The sections 3 and 4 are secured together by holdfast means21 which extend through flange 5, washers 18, 19, diaphragm 20 and engage in flange 12 and socket 11. When the sections engaging with portion ment 35. The element 3, 4 are secured together the latter extends inwardly horizontally with respect to the lower end of section 3. I

The diaphragm has an axial opening 22 through which extends the reduced lower fibre washer 29. The end portion 23 extends through opening 22 and also through a fibre washer and a metallic washer 31. .The washer 30 is interposed between the lower face of diaphragm 20 and washer 31. The reduced end portion-23 is threaded and .23. and abutting washer 31 is a clamping nut 32. I

Mounted on element 17, corresponding in contour and of greater height than the height of the latter is a holder 33 of nonconducting material which bears against the inner face of section 2. The holder is formed in proximity to one end thereof with a transverse groove 34 open at each end and at the top of the holder. circuit controlling element is indicated at 35 and which has one end rounded, as at 36. The element 35 is arranged on its .lower longitudinal edgeand is disposed at right angles to that part of the holder in which is arranged groove 34. The rounded eng of an is element 35 is apertured, as at 37 arranged in groove 34. The lower edge of element 35 is spaced from the bottom wall of groove 34. Arranged within holder 33 is a pivot 38 which extends: transversely of groove 34 and through aperture 3'7 in ele- 35 is arranged diametricallywith respect to section 2, but is less length than the diameter of the latter. Element 35 is of non-conducting material and has a vertical opening39 at a point between its vertical median and free end. Secured in element 35 and extending from its top edge, in. proximity to its free end is a conductor 40 providing a breaker point 41. The conductor 40 is connectedby a circuit connection 42 to a binding post 43 secured in the body of section 2. The reduced end terminal portion 23 of post 24 extends upwardly through opening 39. The element 35 seats on shoulder 27 Mounted on the'holder 33 is an insulator element 43 and positioned on the latter is a' segmental shaped holder 44 provided with an arm 45 carrying near its outer end a conductor 46*providing a breaker point 47 which is normally in contact with breaker point 41. The conductor 46 is connected by a circuit Wire 42 to a binding post 43' A rectangular the pressure from secured in the body of section 2. The arm 45 is stationary.

Extended from holder 33 and bearing upon element 35 is a flat controlling spring 16 are 'apertured for the passage of the holdfast means, the latter are anchored in flange 16. Positioned uponthe'top edge of section 2 is a'packing ring 53. Overlapping the top edge ofsection 2 and'bearing against ringv 53 is a transparent closure cap 54 for the open top of housing 1. A bail 55 hasits ends extended into the sockets provided by the bosses 6Q interposed between the cap 54and bail 55 is an adjustable binding member 56 for cap 54. The ignition circuit is indicated at 57 Under normal conditions the breaker points are in contact to close the circuit, this is due to the pressure of the oil, within chamber 13 acting upon the diaphragm 20 causing post 24 to be elevated to lift element 35 against the action of spring 43. When the oil is reduced the diaphragm lowers, due to the action of spring 48 and the points 41, 47- separated whereby the ignition circuit is opened What I claim is 1. In a circuit controlling device, an angle shaped flat support including a pair of legs disposed at right angles to each other, an insulator element mounted on and of the same form as that of said support, an angle shaped fiat holder including a pair of legs disposedat right angles to each other, seated upon and of the same form as that of said element, one of the legs of said holder formed in its. upper face with a transverse groove, insulating means mounted upon the other leg of the holder, a shiftable arm having one end positioned in said groove, said arm being pivotally connected at said end to and extended from said grooved leg, said arm having a vertical opening and a breaker, point interposed in the circuit, a holder mounted on said means. and formed with a stationary arm extended over said shiftable arm, said stationary arm having, a breaker point interposed in the circuit and normally spaced from and aligning with said other breaker point, a spring attached .to andextending from said grooved leg and permanently bearing on said shiftable arm, means for anchoring said support, holders, insulating means and "element together, and a normally stationary'vertically movable shouldered post abutting and extending into said openin and providing when moved upwardly to r'ng the breaker points on said arms into contact.

2. In a circuit controlling device, a support, an insulator positioned against one face thereof, a holder ositioned on said insulator and formed wit a groove, a shiftable arm having one end positioned in said groove, said arm being pivotally mounted at said end within and extending from said holder, said arm being formed with an opening and a breaker point between the latter and its other end, insulating means upon a portion of one face of the holder, a flat spring secured upon the non-insulated portion of said face of the holder, extended from the latter and permanently bearing on said arm, a holder mounted on said means and formed with a stationary arm extended over said shiftable arm, said stationary arm having a breaker point aligning with and normally spaced from said other breaker point, and a normally stationary movable post abutting and extending into said opening and providing when moved in one direction to bring said breaker points into contact.

In testimony whereof, I aflix my signature hereto.

CHRISTOPHER B. WILLI. 

